Thomas Prusik-Parkin — who allegedly dressed up in his dead mother’s clothes to collect government benefits — swears he’s “not Norman Bates,” even though he is obsessed with the movie.

Prusik-Parkin bizarrely turned a jailhouse interview with The Post yesterday into an opportunity to ramble about the fictional killer’s psyche.

“Whenever [Bates] looked through the hole [at actress Janet Leigh undressing in her motel room], he would get excited,” the mild-mannered Prusik-Parkin said of the 1960 Alfred Hitchcock flick starring Anthony Perkins as a cross-dressing, murderous innkeeper.

“He’d kill her, then in his head think it was his mother.”

Prusik-Parkin is not accused of murder, but authorities do allege he was so convincing in his dress-up antics that he was able to rake in hundreds of thousands of dollars in Social Security and rent subsidies.

“That wasn’t me,” Prusik-Parkin said from Rikers Island when asked about surveillance images that show him dressed in his mom Irene’s clothes.

“That was an impersonator.”

Prusik-Parkin, 49, and Mhilton Rimolo, 47, were charged with larceny and fraud and held on $1 million bail each. They each face up to 25 years if convicted.

He had plenty more to say about his mom during the 40-minute interview.

Prusik-Parkin claimed that she was a B-movie star who once dated Gene Kelly and was an understudy to Rita Hayworth.

Asked what movies she was in, the loopy Prusik-Parkin, who claimed he was educated in Scotland and later graduated from NYU, said he couldn’t recall.

“If you’d just seen her picture,” he gushed when talking about his mother when she was young, “you’d see she was very beautiful.”

Prusik-Parkin said he was very upset when his mother died because he had “mostly been raised in a household full of women.”

The articulate Prusik-Parkin also talked about having a coffin in his home, although he wasn’t too keen about sharing any details.

“I’m not going to tell you who was in it,” he deadpanned.

Authorities said they didn’t know why the coffin was in the home.

The Brooklyn DA’s Office claims Prusik-Parkin began his cross-dressing con when his mother died in 2003 at age 73.

Authorities say he filed her death certificate with a fake Social Security number and date of birth, allowing him to use her real ones as if she were still alive.

They add that Prusik-Parkin and Rimolo, who allegedly posed as Irene Parkin’s nephew, collected $700 a month in Social Security and an additional $65,000 in rent subsidies in her name.

Each time Prusik-Parkin had to go to a government office, he would don a wig, heavy makeup and his dead mother’s red clothes, authorities claim.